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Best PSU for RX 7900 XTX in 2024 – Our top power supply choices

The top PSU picks for the RX 7900 XTX
Last Updated on May 8, 2024
Best PSU for RX 7900 XTX
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The 7900 XTX is a high-performance graphics card that requires a lot of power to run at its best. To ensure your 7900 XTX is getting the power it needs, you’ll need a high-quality PSU.

In this article, we will be discussing the best PSUs for the 7900 XTX. We will be covering the top models on the market, their features, and specifications, and what you should look for when choosing a PSU for your 7900 XTX.

Whether you’re a hardcore gamer or a professional video editor, you’ll find the information in this article to be invaluable when selecting the perfect power supply for your 7900 XTX.

If there’s one thing we know for sure is that AMD likes overclocking so they make their units in a way that’s capable of enduring high frequencies. The RX 7900 XTX is one of the most overclocked GPUs out there. Even though it has a lower TDP than the competition. The recommended 750 W that AMD has, might be a little low.

How do we selected the best PSU for RX 7900 XTX

When choosing a PSU for your 7900 XTX, we consider the wattage, efficiency rating, connectors, and build quality of the PSU. A high-quality, high-wattage PSU with a high-efficiency rating and enough connectors will ensure that your 7900 XTX is getting the power it needs.

Lastly, it’s important to consider the brand and build the quality of the PSU. Look for a PSU from a reputable brand that has a good track record of producing high-quality power supplies. Additionally, choose a PSU with a high build quality, as it will be more reliable and less likely to fail over time.

Like always, we have tested and reviewed multiple of these products, including our ‘best in class’ pick. With additional insight, we have provided extra nuggets of knowledge and recommendations. In order to check out more from these PSUs, simply click on the review link next to the product.

  • Rear view of a desktop pc showing the Corsair RM1000X Shift power supply, cooling fan, and various input/output ports.
  • A close-up of the back panel of the Corsair RM1000X Shift power supply.
  • A Corsair RM1000X Shift power supply unit in front of its packaging box.
  • Thge top of a Corsair RM1000X Shift power supply unit placed on a surface, with the background of PC components shelves subtly shifted to a blur.
  • A Corsair RM1000X Shift modular power supply unit showing its connectors on the side
  • Corsair RM1000X Shift from the fan side
  • The rear panel of a desktop computer with various ports and a Corsair RM1000X power supply cable connected.
Best in ClassExcellent
4.5 /5
Editor’s Rating
How We Review
  • Wattage: 1000W
  • Form Factor : ATX
  • Rating: 80 Plus Gold, Cybenetics Gold
  • Design: Fully modular, side connectors
Reasons to Buy
  • Long-lasting power supply for many years
  • 1000W for your build including the top-end hardware
  • Quiet and efficient performance
Reasons to Avoid
  • Overkill if recommended power is below 1KW
  • Better efficiency options available
  • High price tag

The Corsair RM1000X Shift is a top-of-the-line PSU ideal for powerful gaming PCs, especially those rigged with the RX 7900 XRX. It boasts 1000 W of power, enough to handle even the most demanding graphics cards and processors. It also achieves 80+ Gold efficiency, minimizing wasted energy and keeping your system cool and quiet with a zero RPM fan mode. Additionally, it features high-quality components, a fully modular design for clean cable management, and a future-proof design that complies with the latest ATX 3.0 and PCIe 5.0 standards. Overall, this PSU take the cake for our best picks here. If you want quality across the board, then you came to right place.

Overall the RM1000X Shift is an excellent choice of power supply for your current or any future builds. With such a high wattage it will power even the top end of hardware.

PC Guide

As part of our review, we have searched for some of the drawbacks for the RM1000X. While there aren’t many, we found a few worth noting. With great power comes a hefty price tag. It’s a significant investment compared to lower wattage PSUs. Furthermore, unless you specifically need 1000W for your build, most users won’t utilize its full potential. A less powerful PSU might be enough and more cost-effective for mid-range PCs.Also, its size might be a concern for some cases with limited space.

  • Corsair SF850L fan, source PCGuide
  • Corsair SF850L logo side, source PCGuide
  • Corsair SF850L logo profile, source PCGuide
  • Corsair SF850L back side logo, source PCGuide
  • Corsair SF850L info label, source PCGuide
  • Corsair SF850L cable connectors side, source PCGuide
4.5 /5
Editor’s Rating
How We Review
  • Wattage: 850W
  • Form Factor: SFX-L
  • Rating: 80 Plus Gold, Cybenetics Platinum
  • Design: Fully modular
Reasons to Buy
  • Top small form factor PSU
  • Perfect for compact builders
  • Balanced price point
Reasons to Avoid
  • Not appropriate for larger builds
  • Only 850W

The Corsair SF850L is a strong contender for powering a high-end GPU in a Small Form Factor (SFF) PC. Packing 850W, it tackles the power demands of even the most top-tier graphics cards. Plus, 80+ Gold efficiency keeps your system cool and quiet, crucial for managing the heat from a powerful GPU. The compact design allows you to build a beastly PC even with limited space. Perfect for keeping budget down, PC build compact, and gaming smooth.

The Corsair SF850L doesn’t drop much even as a small factor choice.

PC Guide

That being said, there are some trade-offs. We found that the SF850L’s fan get loud under heavy load, which might be a concern for noise-sensitive users. Additionally, with 850W, future upgrades with even more power-hungry components could be limited. If you constantly chase the absolute top-end GPUs, a higher wattage PSU might be a safer bet for the future. But, for now, this product will do just fine with the RX 7900 XTX

  • Thermaltake Toughpower GF3
  • Wattage: 1000W
  • Form Factor: ATX
  • Rating: 80 PLUS Gold
  • Design: Fully Modular Low-Profile Flat Cable
Reasons to Buy
  • Fully modular
  • 80 PLUS Gold
  • Good amount of wattage
  • Great warranty
Reasons to Avoid
  • High inrush current with 230V input
  • Average transient response at 12V

The Thermaltake Toughpower GF3 ATX 3.0 is a high-performance power supply unit designed for gaming and high-end PC builds. It boasts a number of features that make it a great choice for powering a 7900 XTX or similar high-end GPU.

One of the key features of the Thermaltake Toughpower GF3 ATX 3.0 is its high wattage. With a capacity of 1000W, it has more than enough power to feed your 7900 XTX, even if you plan on overclocking or upgrading other components in your PC.

This wattage is great if you are going to be pairing your 7900 XTX with a Ryzen 9 or core i9 CPU. It will satisfy the power needs of both components while leaving you enough headroom to overclock.

The Thermaltake Toughpower GF3 ATX 3.0 also has a high-efficiency rating of 80 Plus Gold, meaning that it is at least 87% efficient. This can help save you money on your electric bill and keep your PC running cooler.

This PSU also has a good number of connectors, including one 8-pin and one 6-pin power connector for the 7900 XTX, as well as additional connectors for other components in your PC. One of the best parts of the PSU is the 135 mm Fluid Dynamic Bearing Fan.

  • Wattage: 1200W
  • Form Factor: ATX
  • Rating: 80 PLUS Platinum Certified
  • Design: Fully-modular cabling
Reasons to Buy
  • Highly efficient
  • Amazing voltage regulation
  • High-quality components
  • Fully-modular design
Reasons to Avoid
  • Noisy operation reported
  • Premium PSU means premium price tag

The 7900 XTX is a top-of-the-notch GPU and there are some people pairing it with some of the strongest processors, namely a Threadripper or Intel’s HEDT. In such cases, you will need a PSU capable of providing a lot of power and security to maintain your PC for a long time. After all, a PC is as durable as the PSU allows it to be.

The SS-1200XP3 boasts a powerful +12V rail, a fully-modular cabling design, and a user-selectable semi-passive operation. Which significantly reduces the noise output of the cooling fan when the load is low. Unlike many of its competitors that use 140mm fans for optimal airflow and minimal noise, Seasonic chose to use a smaller 120mm fan.

The unit also features exclusive use of Japanese electrolytic capacitors, which are known for their durability and longevity. And offers ten PCIe and two EPS connectors that are all available simultaneously, making it a versatile option for various high-performance builds. This power supply is also attractive for miners, as it has a large number of connectors. As the trend of crypto mining has decreased, some companies may lose interest in the high-capacity category. But, others may continue to release flagship models to showcase their technical expertise.

The PSU is able to deliver its maximum power consistently even at high temperatures up to 50°C. 80 Plus Platinum certified for high energy efficiency. As expected from a premium PSU, it is compatible with Haswell processors and features a fully modular cabling design for easy installation and cable management. Additionally, it is equipped with all the necessary safety features. It also has a semi-passive operation mode that can be deactivated via a switch for reduced noise output.

  • Wattage: 850W
  • Form Factor: ATX
  • Rating: 80 PLUS Gold
  • Design: Fully Modular
Reasons to Buy
  • Fully modular
  • Great performance
  • Full power at 47 degrees
  • Cool and silent
Reasons to Avoid
  • Loose load regulation
  • Power Factor readings could be higher

The Cooler Master V850 V2 Gold is a powerful and efficient PSU. It can handle the power requirements of a high-end GPU such as the RX 7900 XTX. Its platform is designed to deliver high performance and save you money on electricity bills. While it may not be at the top of its class, it is still a solid choice that is worthy of consideration.

Its major competitors in the 850W category include the Seasonic Focus Plus Gold 850, Corsair RM850x and RM850, XPG Core Reactor 850, and the Super Flower Leadex III and V models. With the recent release of demanding high-end graphics cards from Nvidia and AMD, the 850W category has become increasingly popular. Since these cards require a strong power supply to function properly.

 This PSU offers ample connectivity options with two EPS and six PCIe connectors. It’s noteworthy that it comes with three PCIe cables, which can be utilized in high-end VGAs with three PCIe sockets. It is worth noting that it is recommended to not use both PCIe connectors of the same cable with high-wattage graphics cards such as Nvidia’s. But, the 7900 XTX should not pose a problem. The number of peripheral connectors is sufficient, however, it could be improved by having more space between them. On the downside, it does not have in-cable capacitors.

Considerations for the best PSU for RX 7900 XTX

The first thing to bear in mind is the recommended PSU capacity for the 7900 XTX. According to AMD, a 750W PSU will suffice to feed the GPU and the rig. However, we consider that amount a bit on the edge. It won’t leave you any space for overclocking or even upgrading other components of your PC to be more power-hungry. So the first thing to consider will be that the PSU has a wattage of at least 850W.

The second thing to consider is the efficiency rating of the PSU. A high-efficiency PSU will use less power to run, which can save you money on your electric bill and help keep your PC running cooler. Look for a PSU with an 80 Plus rating of at least Bronze, which means it’s at least 82% efficient.

Another important factor to consider is the number of connectors and the type of connectors available on the PSU. The 7900 XTX requires one 8-pin and one 6-pin power connector.So make sure the PSU you choose has those connectors available. Additionally, it’s a good idea to choose a PSU with plenty of additional connectors for other components in your PC, such as extra hard drives or fans.

It is also important to consider picking the best all-round elements for your rig. What do we mean by this? Well, you are going to want to pick the top GPU and CPU to maximise your gameplay and overall experience. We have curated guides for all of these features so make sure to check them out below.

Camilo is a contributor for PC Guide. He's been into tech since he was a teen, surfing through the web and local stores trying to find the cheapest way to play the latest Half-Life on his old Windows